Inventor · disambiguated record
Geun Sig Cha
Also filed as: CHA GEUN S · CHA GEUN SIG
45 granted patents·7 pending applications·769 citations·filing 1990–2023
98Inventor score
Top patents by PatentIndex Score
52 records- 0196US6726818B2Biosensors with porous chromatographic membranesI SENS INC·Filed 2001·Granted Apr 27, 2004·182 cites·27 claims
- 0295US7288174B2Electrochemical biosensorI SENS INC·Filed 2004·Granted Oct 30, 2007·158 cites·16 claims
- 0394US6554982B1Miniaturized solid-state reference electrode with self-diagnostic functionINFOPIA CO LTD·Filed 2000·Granted Apr 29, 2003·73 cites·17 claims
- 0492US7695608B2Electrochemical biosensor and biosensor measuring deviceI SENS INC·Filed 2007·Granted Apr 13, 2010·23 cites·9 claims
- 0589US6793789B2Reference electrode with a polymeric reference electrode membraneGEUN SIG CHA·Filed 2001·Granted Sep 21, 2004·68 cites·25 claims
- 0683US7133712B2Method and apparatus for non-invasive monitoring of blood substances using self-sampled tearsEYELAB GROUP LLC·Filed 2003·Granted Nov 7, 2006·22 cites·52 claims
- 0781US6663756B2Microchip-type oxygen gas sensor based on differential potentiometryI SENS INC·Filed 2001·Granted Dec 16, 2003·21 cites·17 claims
- 0874USD1075842SDisplay screen or portion thereof with virtual character iconI SENS INC·Filed 2023·Granted May 20, 2025·4 cites·1 claims
- 0974US10000785B2Composition of redox-reagents for electrochemical biosensor and biosensor comprising the sameJUNG SUNG KWON·Filed 2012·Granted Jun 19, 2018·1 cites·19 claims
- 1073US10690619B2Apparatus and method for measuring concentration of an analyte in whole blood samplesI SENS INC·Filed 2014·Granted Jun 23, 2020·2 cites·11 claims
- 1173US7455756B2BiosensorI SENS INC·Filed 2002·Granted Nov 25, 2008·14 cites·13 claims
- 1271US6964734B2Planar reference electrodeGEUN SIG CHA·Filed 2001·Granted Nov 15, 2005·12 cites·12 claims
- 1370US6210907B1Measuring device with electrodes fabricated on porous membrane substrate in wholeSAMDUCK INTERNAT CORP·Filed 1998·Granted Apr 3, 2001·39 cites·15 claims
- 1469US5417835ASolid state ion sensor with polyimide membraneUNIV MICHIGAN·Filed 1993·Granted May 23, 1995·30 cites·13 claims
- 1568US8277635B2Electrochemical biosensor measuring systemKIM MOON HWAN·Filed 2008·Granted Oct 2, 2012·4 cites·7 claims
- 1667US8314613B2Electrochemical biosensor measuring systemCUI GANG·Filed 2008·Granted Nov 20, 2012·3 cites·7 claims
- 1765US5102526ASolid state ion sensor with silicon membraneUNIV MICHIGAN·Filed 1990·Granted Apr 7, 1992·27 cites·13 claims
- 1863US9500646B2Sensor cartridge for detecting component of at least one sampleI-SENS INC·Filed 2012·Granted Nov 22, 2016·2 cites·20 claims
- 1963US8377272B2Electrochemical biosensor measuring systemI SENS INC·Filed 2008·Granted Feb 19, 2013·3 cites·28 claims
- 2063US5531870APotentiometric ion determinations using enhanced selectivity asymmetric ion-selective membranesDU PONT·Filed 1995·Granted Jul 2, 1996·25 cites·19 claims
- 2161US11378540B2Apparatus and method for measuring concentration of an analyte in bio-samplesI SENS INC·Filed 2020·Granted Jul 5, 2022·0 cites·12 claims
- 2261US10024816B2Personal blood glucose meter and abnormal measurement detection method using sameI SENS INC·Filed 2012·Granted Jul 17, 2018·1 cites·5 claims
- 2361US8940233B2Cartridge for apparatus for chemically analyzing blood and apparatus using the sameKANG TAE YOUNG·Filed 2008·Granted Jan 27, 2015·1 cites·10 claims
- 2461US6350524B1Hydrophilic polyurethane-coated chloride-selective electrodesCHA GEUN SIG·Filed 2000·Granted Feb 26, 2002·4 cites·6 claims
- 2560US8337683B2Microfluidic sensor complex structureCHOI MOON HEE·Filed 2008·Granted Dec 25, 2012·3 cites·11 claims
- 2660US8226004B2Biosensor measuring apparatus and a method thereofCHA GEUN SIG·Filed 2008·Granted Jul 24, 2012·1 cites·19 claims
- 2760US2007043283A1Method and Apparatus for Non-Invasive Monitoring of Blood Substances Using Self-Sampled TearsEYELAB GROUP LLC·Filed 2006·Application pending·0 cites
- 2859US6746583B2Microchip-based carbon dioxide gas sensorI SENS INC·Filed 2001·Granted Jun 8, 2004·2 cites·12 claims
- 2958US9143250B2Blood glucose monitoring system having wireless communication module to which time synchronization method is appliedI SENS INC·Filed 2014·Granted Sep 22, 2015·1 cites·9 claims
- 3057US8338183B2Electrochemical determination system of glycated proteinsNAM HAKHYUN·Filed 2006·Granted Dec 25, 2012·2 cites·8 claims
- 3157US6509148B2Method for fabricating biosensors using hydrophilic polyurethaneI SENS INC·Filed 1999·Granted Jan 21, 2003·16 cites·14 claims
- 3255US7662111B2Vacuum assisted auto-lancing deviceCHA EUN JONG·Filed 2004·Granted Feb 16, 2010·20 cites·14 claims
- 3352US10125384B2Reagent composition for redox reactionI SENS INC·Filed 2013·Granted Nov 13, 2018·0 cites·14 claims
- 3449US9512458B2Electrochemical biosensor with sample introduction channel capable of uniform introduction of small amount of sampleCUI GANG·Filed 2008·Granted Dec 6, 2016·0 cites·9 claims
- 3549US7704747B2Dual blood glucose meterI SENS INC·Filed 2004·Granted Apr 27, 2010·4 cites·4 claims
- 3649US2006175205A1Electrochemical biosensorI SENS INC·Filed 2006·Application pending·0 cites
- 3748US9753004B2Electrochemical biosensor with improved accuracyI-SENS INC·Filed 2014·Granted Sep 5, 2017·0 cites·14 claims
- 3845US8475744B2Solution bag for apparatus for chemically analyzing bloodHA JEONGHAN·Filed 2008·Granted Jul 2, 2013·0 cites·6 claims
- 3944US11262365B2Kit for hemoglobin A1C quantitative analysisI SENS INC·Filed 2017·Granted Mar 1, 2022·0 cites·18 claims
- 4044US10890557B2Electrochemical biosensorI SENS INC·Filed 2015·Granted Jan 12, 2021·0 cites·18 claims
- 4144US9435792B2Hemolysis reagent composition for hemoglobin A1C quantitative analysis using enzymatic methodI-SENS INC·Filed 2012·Granted Sep 6, 2016·0 cites·9 claims
- 4243US9351678B2Lancet holder and lancet device including the sameCHA GEUN SIG·Filed 2011·Granted May 31, 2016·0 cites·6 claims
- 4341US10371693B2Portable blood glucose measurement deviceI SENS INC·Filed 2015·Granted Aug 6, 2019·0 cites·16 claims
- 4440US9192331B2Releasing structure for lancing deviceCHA GEUN SIG·Filed 2011·Granted Nov 24, 2015·0 cites·9 claims
- 4540US2013267979A1Lancet device with adjustable hypodermic penetration depthCHA GEUN SIG·Filed 2011·Application pending·0 cites
- 4640US2013281882A1Lancet deviceCHA GEUN SIG·Filed 2011·Application pending·0 cites
- 4740US2013267976A1Lancet-separable lancet deviceCHA GEUN SIG·Filed 2011·Application pending·0 cites
- 4839US2015014162A1Connector for connecting bio-sensor and measuring instrument thereofI SENS INC·Filed 2012·Application pending·0 cites
- 4936US2017188915A1Measurement error correction device of bio-measurerI-SENS INC·Filed 2015·Application pending·0 cites
- 5035US9316655B2Biochemical analysis cartridge having improved operabilityI SENS INC·Filed 2015·Granted Apr 19, 2016·0 cites·9 claims
Showing the top 50 of 52 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →